Make sure your screen saver doesn't move the Player out of full-screen mode when the screen saver turns on. Also, turning off the Enable full-screen mode switch feature might solve the problem. To do this:

1.

On the Tools menu, click Options, and then click the Performance tab.

2.

Click Advanced.

3.

Clear the Enable full-screen mode switch check box.

Note that for Windows XP, full-screen controls disappear if you stop moving the mouse and the cursor is not hovering over the controls. If you want the controls to disappear more quickly, you can clear the Display full-screen controls check box (which is also located on the Advanced dialog box). Or you can use the TweakMP Powertoy for Windows XP from WMPlugins.com to adjust full-screen settings.

If you find that a video disappears or turns purple and green about 20 seconds before it stops playing, or that video for every file in the playlist isn't displayed, turn off overlays by doing the following:

1.

On the Tools menu, click Options, and then click the Performance tab.

2.

Click Advanced.

3.

Clear the Use overlays check box.

If the problem continues, try turning off the video mixing renderer (VMR). You can turn off the VMR by clearing the Use video mixing renderer check box (also located on the Advanced dialog box).

The video codec that is required to decode and display the video may not be installed on your computer. For example, if you are trying to play a file that was encoded using the DivX video codec and you do not have that codec installed on your computer, you will likely hear the audio portion of the file, but you won't see the video. For information about finding and downloading codecs, see the Using codecs FAQ.

The MPEG-2 decoder (also called a DVD decoder) that is required to decode and display the video in your file may not be installed on your computer. For more information about installing an MPEG-2 decoder on your computer, see DVD Decoder Plug-ins.

For Windows Media Player 9 Series or later, you can set these options by using the Audio and Language Tracks command that is available on the Play menu. For Windows Media Player 7 and Windows Media Player for Windows XP, simply play the first audio channel. For Windows Media Player 6.4, you can select the audio channel by clicking the Properties command on the File menu.

If you receive a message that contains error codes 0xC00D0BB8 or 0xC00D1199 when trying to play an .mp3 file, the problem might be because the file has a compressed or unsynchronized ID3 header that the Player does not support for security reasons. For more information about unsynchronized ID3 headers, in the Microsoft Knowledge Base, see article 814129, "Error in Windows Media Player 9 Series When You Play Specific MP3 Files."

For compressed headers or other ID3v2 data, you can use a tag editing program to remove the information. For example, you can use the Advanced WMA Workshop, available from LitexMedia.

If you hear audio distortion when playing an .mp3 file, find the file Ctmp3.acm on your computer and rename it to Ctmp3.bak. The Player isn't fully compatible with the Ctmp3.acm file, which is a Creative PlayCenter MP3 decoder.

Verify that your operating system is Windows XP and that you are using Windows Media Player 9 Series or later.

•

Be sure you are playing Windows Media Audio (WMA) or MP3 files that are stored on your computer or on a data or HighMAT CD, rather than playing songs directly from an audio CD. Crossfading does not work with audio CDs.

•

Test crossfading with songs that were ripped at the same time. Crossfading might not work if the files have different sampling rates or bit depths, different numbers of audio channels, or if any of the files contain other kinds of streams in addition to audio (such as video, script, or HTML).

•

Check that you are playing files that were ripped with the same copy protection setting. For crossfading to work, the files you are playing must either all have copy protection turned on, or they must all have copy protection turned off.

•

Test songs that have reasonably high volume at the beginning and at the end of the song, because crossfading reduces the volume during those sections.

•

Move the overlap slider to the far right (for the maximum amount of overlap) for the best chance of hearing the overlap on a wide variety of songs.

If you're playing a file that is being streamed from a Windows Media server, seeking is probably not enabled because the file was not indexed.

•

If you're playing the file from a Web server, seeking is not supported.

•

If you're playing the file on your computer, the file may not be indexed. Files can be indexed by using Windows Media File Editor, a utility that is included with Windows Media Encoder 9 Series. Note that Windows Media files are indexed by default.

•

If you are using Windows Media Player 6.4, seeking is not available. Instead, you can use the position slider to adjust the position in the file.

You can make Windows Media Player the default player for a number of file types (formats). You must be logged on as an administrator or a member of the Administrators group to change the file types that the Player will play by default. The procedure varies depending on which version of the Player you are running.

For Windows XP, your AutoPlay settings may affect your Windows Media Player file types settings. For more information about AutoPlay, see Windows Help and Support.

1.

On the Tools menu, click Options, and then click the File Types tab.

2.

Select the check box of the file types you want to play in Windows Media Player.

The Player may not be able to play a file, even though you have selected its file type. This can occur if the file uses a codec that is not installed on your computer. For information about codecs, including how to download them, see the Using codecs FAQ.

Clear the check box of the file types you do not want to play in Windows Media Player.

Clearing the check box next to a file type restores the file type association to the previous default player, if one was specified. If no default player was previously specified and you try to play a file, a Windows dialog box will be displayed so that you can select the program you want to play the file.

4.

If a check box appears dimmed, the Player has only partial ownership of the file type. Multiple file name extensions are assigned to the file type, but the Player only plays some of those extensions by default. To give the Player full ownership of a file type, double-click the dimmed check box.

Select the check box of the file types you want to play in Windows Media Player.

Note that if you install other players on your computer, they may interfere with your Windows Media Player file types settings. For more information about setting file type ownership in other players, see the documentation that came with those programs.

The .wma file name extension is used for Windows Media Audio (WMA) files that contain audio compressed with one of the Windows Media Audio codecs.

The .wmv file name extension is used for Windows Media Video (WMV) files that contain both audio and video compressed with the Windows Media Audio and Video codecs.

The .asf file name extension is used for content that includes audio only or both audio and video. The content in an .asf file could be encoded by a variety of different codecs, including Windows Media Audio and Video codecs. For more information about the Windows Media and Advanced Streaming Format (ASF) file formats, see Windows Media Format. For more information about codecs, see the Using codecs FAQ.

The Player interacts with many system components, including drivers, codecs, and DirectShow filters. It is possible that the Player is not responding because of a faulty or incompatible component from another provider, such as a codec pack. (Examples include the DivXNetworks Nimo, Tsunami, and K-Lite codec packs, the SoftRom.Net ACE Mega, and the All in 1 codec packs.) Incompatibilities are known to exist with some of the components in the codec packs. The incompatibilities can cause serious playback issues in Windows Media Player and other players, can lead to system corruption, and can make it difficult for Microsoft Product Support Services to diagnose and troubleshoot playback problems. For more information about resolving this problem, see the Using codecs FAQ.

To protect the security of your computer, be sure to only download programs, codec packs, and other items from sources that you trust. To learn more about security, see the Windows Media Player 11 or Windows Media Player 10 security statement.

Submit a question to the Windows Media Player newsgroup. Please note that the newsgroup is maintained by a community of knowledgeable users offering peer-to-peer assistance. It is not an official Microsoft technical support resource. As such, Microsoft cannot guarantee that your question will be answered. When you ask a question on the newsgroup, be as specific as possible. For example, be sure to include the following basic information:

•

Windows Media Player version. (On the Help menu, click About Windows Media Player.) For example, the version might be 10.00.00.xxxx.

•

Windows operating system version. (Click Start, right-click My Computer, and then click Properties.) In your question, include the full version name (for example, Windows XP Professional with Service Pack 2).

•

The task that you were trying to accomplish prior to encountering the problem.

•

If an error message is displayed, note the error message text. (For example, it might say "Windows Media Player has encountered an unknown error.")

•

If an error message is displayed, note the error message ID number (for example, "C00D11CD"). You can determine the ID number by clicking the Web Help or More Information button when the error message is displayed.

•

If the problem only occurs when you use a particular file, Web link, or URL, provide details about that item.